Sand trap



M. J. COMES Aprifi 5, 1932.

SAND TRAP Filed Jan. 12, 1931 z i x z 7 i Z 1 1/ J 4 a BRRP/ N 70% \\R.\ I. x i

Patented Apr; 1-932,

stares- MILL'Ann 3. commas, or SEMINOLE, OKLAHOMA SAND TRAP Application filed ianuar iaieei.serial No. 508,283. a I

, vision of a settling chamber associatedwith the pump that foreign substances entering thelatter with the fluid maybe trapped and .15 dumped whenever desired Wihout removing the well tubing and other working parts of the pump, rendering a great saving in time, labor and expense and waste of fluid now eX- perienced-when cleaning pumps now in use 1 in Wells- A further object of this invention is the provisionof a novel mounting of the settling chamber with the pump parts and the association of a valve therewith which may 5 be openedat any time by lowering of the well tubing and thereby moving the settling chamber relative to the pump cylinder and suckermechanism thereofto empty the'foreign substances collected back into the well without undue waste of the fluid contained in the pump.

the provision of a sand trap of the above stated character which will besimple, durable and efficient, and which may be manufactured and sold at a comparatively low. cost. With these and other objects in view as will become more apparent as the description 0 proceeds, the invention consists in certain novel features ofconstruction, combination and arrangement of parts as will be hereina after more fully described and claimed.

For a completeunderstanding of my in- 5 1 vention, reference is to-be had to the followingpdescri'ption and accompanying drawings, in which Figure 1 is a vertical sectionalview illustratinga sandvtrap associated with a well tubing and thesucker mechanism of a pump cylinder 6 bythe collar 10 andhas its lower A still further object of this invention is ing ,valve .11upwardly through the working and constructed in accordance with myin. vention. 1

Figure 2 is a sectional view taken on the line 2 2 of Figure 1'.

Referring in detailito' the drawings the numeral 1 indicates thelower end of a well tubing detachably' secured to theupper end of a trap 2 by a coupling 3. The sucker rod 1 of the pump extendingdownwardly through the tube 1 from the pump carries the usual workingvalveo for; reciprocation in a pump cylinder 6' located within the chamberQm- J 73 1' it I The chamber 2 consists of a tubular mem- V ber of'a' diameter greater. than the welltubing and has each endscrew-threaded with oneend threaded into the coupling3 while the other end has threaded thereto a collar 7 having a ground valve seat 8 threaded thereinand engaging one end of 'atubul-arf member. 7 a 1 A'substantially triangular shaped plate '9 .is' secured in the trap2 and supports the 1' cylinder 6 and the lower end of the latter 7 is screw-threaded to receive a collar 10 provide'd with a screw-threaded opening of tapered formation to receive a standing valve 11 located below'the working valve; 5. A.

tube 12yis connectedto the lower end of the end screw-threaded to receive 'a valve member 1 '13 having a ground face to cooperate with below thesettling trap and detachably con nected to the usual perforated anchoring member 15 byabumper collar 16.

A deflecting .plate17 is slidably mounted on the sucker rod 4 and when 'the working, valve 5 moves-downwardly inthe cylinder 6, thedefiecting plate engages overthe upperend'of said cylinder.

In operation, the reciprocation of the work-,' i 1 ing valve 5 first draws fluid from the well into the cylinder 6 by wayof the tubes 12, 14 and anchoring element 15 and thenexpels'the fluid trapped in said cylinder by the standp valve into the upper end of the settling chamber 2. The fluid striking the deflecting plate 17 is slightly retarded in its upward movement permitting foreign substances that may 5 be in the fluid to settle or gravitate downwardly in the settling chamber 2 below the upper end of the cylinder 6.

After the operation of the pump over a length of time, the well tubing is lowered carrying with the same the settling chamber 2 and bringing the anchor in contact with the bottom of the well and further movement of the tubing disengages the valve 13 from the seat 8 opening the settling chamber 15 to permit the foreign substances collected therein to drain back into the well. In the lowering of the settling chamber after the anchor 15 contacts with the bottom of the well, the valve seat will strike against the bumper collar 16 causing suflicient vibration to loosen any foreign substances that may be lodged in the settling chamber and consequently permit such substances to gravitate or escape from the chamber through the valve seat into the well.

While I have shown and described the preferred embodiment of my invention it will be understood that minor changes in construction, combination and arrangement of parts may be made without departing from the spirit and scope as claimed.

Having thus described my invention, what I claim is:

A trap comprising a tubular member secured to the lower end of a well tubing to provide a settling chamber, a pump cylinder in said tubular member, a standing valve in the pump cylinder, a sucker rod connected to the working valve, a deflecting plate mounted on the sucker rod, a valve seat carried by the lower end of the tubular member, a tube connected with the pump cylinder, a valve member carried by said tube for engagement with the seat, an anchor member connected to the pump cylinder and extending below the lower end of the tubular memher and adapted to be lowered into engagement with the bottom of a well, and a bumper collar carried by the anchor member to be engaged by the tubular member when lowered for vibrating the latter to cause foreign matter to pass therefrom,

In testimony whereof I affix my signature.

MILLARD J. COMBS. 

